Positron Probes for Mechanical Fatigue Detection System.
DEPARTMENT OF THE NAVY WASHINGTON D C
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The patent relates to positron-emitting probes that have certain features that facilitate the use of positrons for nondestructive testing of fatigued metals. The features include the use of an unfatigued substrate for supporting the positron-emitting material, electric andor magnetic fields to concentrate the positrons on the test item, and a thin scintillator window for use with those radioactive materials that emit a positron without emitting a time-correlated gamma photon.
- Test Facilities, Equipment and Methods